Yes, because it is there, the SLS will send the first group of astronauts to the moon, but is it a viable system in the long run?  First is the issue of the RS-25 engines which are refurbished, uprated from the Space Shuttle. There are enough for the ...

I find the debate of when a decade, century, or millennium ends to be somewhat futile, because either definition is somewhat arbitrary.  As some above have stated, if decades don't end with the year ending in zero, there is a discontinuity at the B.C./A.D. ...

Kennedy was a politician so his goal was to move the Apollo program along to completion while he was still in a position of control. Kennedy undoubtedly expected to be elected for a second term. Once everything was bought and paid for it would have been ...